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Atomic-Scale Principles of Point Contact Friction

Hendrik HoelscherUdo Schwarz

出版	Springer New York, 2009-01-15
主題	Technology & Engineering / Materials Science / GeneralTechnology & Engineering / Nanotechnology & MEMS
ISBN	03875621339780387562131
URL	http://books.google.com.hk/books?id=C5IEzgEACAAJ&hl=&source=gbs_api

註釋

This book describes the current status of knowledge on the atomic- scale principles of point contact friction on clean, defect-free crystalline surfaces. The authors show how it is possible to examine the frictional and, indirectly, the mechanical prpoerties of an (approximate) point contact down to the nanometer scale. The analysis of the corresponding phenomena then leads to the extraction of friction laws for the nanometer scale. Notable is the finding that the frictional forces are proportional to the effective contact area, unlike their well-known macroscopic behavior. On this scale, however, the frictional forces are also independent of the sliding speed for a wide range of velocities. Finally, simple mechanical models as well as results from molecular dynamics simulations will provide deeper insight into atomic friction mechanisms.